Improvement in quartz-mills



T. J. CHUBB.

Ore Mill.A

Patented. Feb. 13, 1866.

Witnesses:

rdsrrrna Sterns' armar THOMAS J. GHUBB, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN QUARTZ-MILLS.

Specitication forming part of Letters Patent No. 52,532, dated February 13, 1866.

Crushing and Regrinding Machine; and I do hereby declare that the following is a full,-

clear, 'and exact description thereof, reference being had to the accompanying drawings, making a part of this speciication,in which Figure l is au elevation of one side of my improved machine. Fig. 2 is a diametrical section through the revolving cylinder, showing the arran gement of partitions therein. Fig. 3 is an end view of the machine. Fig. et shows a series of annular corrugated crushers. Fig. 5 shows the construction of the partition-plates. Fig. 6 is a perspective view of one of the corrugated crushing and grinding rings. Y

Similar letters of reference indicate corresponding parts in the several figures.

The object of this invention is to more perfectly and readily effect the reduction of metalliferous ores and sands to a line powder for the purpose of exposing all the atoms or scales of the metal therein, and thus affording a more perfect separation of the metal from its matrix by the subsequent process of amalgamation.

The nature of my invention consists in the arrangement of a series of corrugated rings loosely within a movable cylinder in such mauner that the mineral substances which are passed into or through said cylinder will be subjected to the grinding action of al greater amount ofgrinding-surface than can be brought Within a given compass by any other plan, as will be hereinafter described.

Another part of myvinventon consists in providing for distributing the mineral substances to the grinding-surfaces of said rings, and at the same time compelling said sub. stances to pass through a series of chambers, whether the substances be i-n a dry or a wet state, as will be hereinafter described.

To enable others skilled in the art to understand my invention, I will -describe its construction and operation.

In the accompanying drawings, C represents a cylinder with central openings through its heads or ends, in the form of tubes or flanges, as shown iu Fig. 2. This cylinder C may be constructed of two semi-cylindrical sections, as represented in the drawings, and these suitably bolted together, so that thejoints will be perfectly tight. It is mounted upon four flanged rollers, c c c. a.. so that it can be easily rotated during the operation of grinding and crushing. Within said cylinder@` are several chambers. C' C', which are formed by means of circular partitions l Bf, that are suitably secured in place, so as to rotate with the cylinder. rlhese partitions are intended more particularly for the distrilmtion of the substances which are to be ground or reground to the grirnling-surtaces,'and to this end the partitions B' have holes through their centers, and the partitions B have holes through them at or near their circumference. The partitions B B are arranged alternately in the cylinder C, so that the substances are compelled to pass from the center to the circumference of said cylinder, and thence toward the. center again several times during the passage of the substances through the c) linder.

Within each one of the chambers C a series ot corrugated rings is arranged, as shown in Fig. 4. These rings A A may be made of different thickness, the central ring being the thickest and the heaviest. The width of these rings may be uniform and slightly less in width than the chambers U', within which they are arranged. 'lhese rings A are corrugated inside and outside, so that the external corrugations of one ring will [it within the internal corrugations of another ring, thus greatly augmenting the surfaces to which the mineral substances wil'l be exposed in passing through the cylinder C.

It will be preferable iu all cases to corrugate the rings, as I have represented in Fig. 4L; but I do not confine myself to this particular form of corrugated surface, as the eleva tions and depressions may be made 'more or less acute, or the surfaces of the rings maybe more in the form of spurred teeth, whichwill answer a very good purpose for grinding and crushing mineral substances; nor do I conne myself to any definite number ot' such rings, for the thinner they are made the greater the number may be used one within another. Different numbers of such rings may be used in different chambers, and thel central or heaviest rings may be combined with a series of very thin and light rings. The difference in the diameters ofthe rings of one series is such that ]ioint. as represented by the arrangement in the rings all play loosely-one within another, and as the cylinder O is rotated aboutits axis these rings also rotate and tiud their lowest vFig. 4, thus leaving spaces above said point for allowing' the mineral substances to pass through as they Vare crushed and ground to a line powder between said spaces. To operate the machine, the ore or sand, it' l dry, is forced through the several chambers C by means ot' blast; or suction, while the cylinder C is revoking. Itl the material to he ground is wet it is ijoated through the several chambers'by means ot a current, of water. ln both statesthe material passes from one ehanr ber to another as rapidly as il: is liberated by the grinding-rings, until 1t is finally discharged from one end ot' the cylinder in a linely-disintegrated state. Y

Some of the advantages of my improved regrinding-niachine over other machines for a similar purpose are as follows: It has more crushing and wearing' surface for the same weight of metal, thus saving expense in transportation; it requires less expenditure otpoWer to pei-forni a given amount of Work; itis simple in construction, easily made, and not liable to get out of order; itean be used with dry as well as wet substances, and it cannot bceome clogged or overcharged.'

Haring thus described my invention, What I claim as new, and desire to secure' by Letters Patent, is-

l. The. employment of corrugated rings, arranged one within another, for the purpose of disintegmting` mineral substances, substantially as described. y

2. The arrangement ot' a series ot' grindingsurfaces within a chambered cylinder the chambers of which communi-cate with each other, substantially as described.

THOS. J. (DI-IUBB.

W ituesses ANDREW J. FAUaoU'r, G. CONRAD S'rAU'rz. 

